Patents by Inventor Mei-Ly Chua

Mei-Ly Chua has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11180716
    Abstract: A cleaning formulation has from 10 to 99 wt % water, from 0.8 to 40 wt % surfactant, optionally other additives, and from 0.2 to 20 wt % of a solvent additive of formula (I): R1—O-(AO)n—C(?O)—R2??(I) where R1 is C3 to C12 alkyl, AO is an alkylene oxide group selected from an ethylene oxide group, a propylene oxide group and a butylene oxide group. At least one AO group in the solvent additive is an ethylene oxide group. The solvent additive has a water solubility of less than 1 wt % in deionised water at 20° C. and the surfactant enables the solvent additive to dissolve and/or disperse in the cleaning formulation. In a method of cleaning an oily or waxy soil from a hard surface, the solvent additive is applied to the hard surface and optionally rinsed with water. The solvent additive is used in a cleaning formulation to improve the percentage soil removal.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: November 23, 2021
    Assignee: Croda, Inc.
    Inventors: Bingham Scott Jaynes, Xin Chen, Li Chen, Mei-Ly Chua, Joseph William Scheblein, Gregory Howard Smith
  • Publication number: 20210054309
    Abstract: A cleaning formulation has from 10 to 99 wt % water, from 0.8 to 40 wt % surfactant, optionally other additives, and from 0.2 to 20 wt % of a solvent additive of formula (I): R1—O-(AO)n—C(?O)—R2??(I) where R1 is C3 to C12 alkyl, AO is an alkylene oxide group selected from an ethylene oxide group, a propylene oxide group and a butylene oxide group. At least one AO group in the solvent additive is an ethylene oxide group. The solvent additive has a water solubility of less than 1 wt % in deionised water at 20° C. and the surfactant enables the solvent additive to dissolve and/or disperse in the cleaning formulation. In a method of cleaning an oily or waxy soil from a hard surface, the solvent additive is applied to the hard surface and optionally rinsed with water. The solvent additive is used in a cleaning formulation to improve the percentage soil removal.
    Type: Application
    Filed: July 18, 2018
    Publication date: February 25, 2021
    Applicant: Croda, Inc.
    Inventors: Bingham Scott Jaynes, Xin Chen, Li Chen, Mei-Ly Chua, Joseph William Scheblein, Gregory Howard Smith
  • Patent number: 10876009
    Abstract: An aqueous binder system is described for a coating composition, the aqueous binder system comprising A) at least 10 wt % water, based on the total weight of the aqueous binder system; B) at least one hydroxyl-functional binder polymer; and C) from 0.1 to 20 wt %, based on the total weight of the aqueous binder system, of at least one quaternary ammonium compound, wherein the quaternary ammonium compound comprises a core quaternary ammonium group which has pendant groups as described. A coating composition, a coating, methods and uses are also provided.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: December 29, 2020
    Assignees: Croda, Inc.
    Inventors: Wilhelmus Adrianus Jacobus Honcoop, Barend van de Velde, Johannes Hendrik Lexmond, Mei-Ly Chua
  • Publication number: 20190292380
    Abstract: The present invention provides an aqueous binder system for a coating composition, the aqueous binder system comprising A) at least 10 wt % water, based on the total weight of the aqueous binder system; B) at least one hydroxyl-functional binder polymer; and C) from 0.1 to 20 wt %, based on the total weight of the aqueous binder system, of at least one quaternary ammonium compound, wherein the quaternary ammonium compound comprises a core quaternary ammonium group which has pendant groups which comprise i) a hydrocarbyl group having 8 to 16 carbon atoms which is a linear or branched, alkyl or alkenyl group; ii) two independent hydroxyl terminated groups, wherein each hydroxyl terminated group comprises from 1 to 10 alkylene oxide residues and wherein the total number of alkylene oxide residues in the quaternary ammonium compound is from 5 to 12; and iii) a CI to C8 hydrocarbyl group; wherein B) and C) are not covalently bonded to each other within the aqueous binder system.
    Type: Application
    Filed: November 17, 2017
    Publication date: September 26, 2019
    Applicants: Croda International Plc, Croda, Inc.
    Inventors: Wilhelmus Adrianus Jacobus Honcoop, Barend van de Velde, Johannes Hendrik Lexmond, Mei-Ly Chua